000 00268nam a2200109Ia 4500
008 190711s9999 xx 000 0 und d
082 _a535 S495
100 _aSETHI.N.K
245 0 _aTEXT BOOK OF OPTICS
260 _aDELHI
_bS. Chand Publishing
_c1957
942 _cBK
_2DDC
999 _c10707
_d10707